COLOR CALIBRATION SHEET AND COLOR CALIBRATION METHOD USING HOLOGRAM

PROBLEM TO BE SOLVED: To provide a hologram color calibration sheet capable of designing reflected light that enables accurate estimation of sensitivity of a camera or the like without being influenced as much as possible by a spectral distribution of illumination, which is strong against dirt and c...

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Bibliographic Details
Main Authors MASUDA TOMOHITO, OKADA TAKASHI, MORIMOTO TETSUO
Format Patent
LanguageEnglish
Japanese
Published 20.04.2017
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To provide a hologram color calibration sheet capable of designing reflected light that enables accurate estimation of sensitivity of a camera or the like without being influenced as much as possible by a spectral distribution of illumination, which is strong against dirt and can be reduced in size, and a color calibration method using the same.SOLUTION: The color calibration sheet includes a hologram and a light reflecting portion that reflects light having a predetermined wavelength distribution owing to a diffraction phenomenon of the hologram.SELECTED DRAWING: Figure 1 【課題】照明の分光分布の影響を極力受けず、カメラ等の感度を正確に推定できる反射光を設計でき、汚れに強く、サイズを小さくすることのできるホログラム色校正シートおよびこれを用いた色校正方法を提供する。【解決手段】色校正シートは、ホログラムを含み、ホログラムの回折現象により、所定の波長分布を持つ光を反射する光反射部を備える。【選択図】図１
Bibliography:Application Number: JP20150203824